每天给小鼠灌服异黄酮植物雌激素芒柄花素(For)或大豆黄酮(Da)20mg/kg,连续7d,明显提高正常小鼠胸腺重量和腹腔巨噬细胞吞噬功能,提高空斑形成细胞的溶血能力和外周血 T 淋巴细胞百分率;体外试验表明:50μg/ml 的 For 或 Da 明显促进植...每天给小鼠灌服异黄酮植物雌激素芒柄花素(For)或大豆黄酮(Da)20mg/kg,连续7d,明显提高正常小鼠胸腺重量和腹腔巨噬细胞吞噬功能,提高空斑形成细胞的溶血能力和外周血 T 淋巴细胞百分率;体外试验表明:50μg/ml 的 For 或 Da 明显促进植物血凝素(PHA)诱导的甲基-~3H 胸腺嘧啶核苷(methyl-~3H Tdg)参入的淋巴细胞转化。展开更多
An immunosuppressive animal model induced by physical stress that forced mice to swim in cold water(14±1℃)and the restorative effect of Tremella polysac charide(TP)on the suppressed immune function by stress wer...An immunosuppressive animal model induced by physical stress that forced mice to swim in cold water(14±1℃)and the restorative effect of Tremella polysac charide(TP)on the suppressed immune function by stress were studied in mice.It was found that the spleen plaque forming cell(PFC)response to sheep red blood cells,delayed cuta- neous hypersensitivity(DCH)induced by dinitrochlorobenzene and the lymphocyte prolifer- ation stimulated by concanavalin A(Con A)were significantly decreased in stressed mice. In addition.the maximal decrease of PFC was reached in 9-12 days after stress.A- drenolectomy could not affect the decrease of PFC in stressed mice.TP(200.400mg/kg) ig for 8-14 days significantly restored the PFC.DCH and lymphocyte proliferation to nor- mal level in stressed mice.展开更多
目的研究鹅绒藤总生物碱(Cynanchum Chinense Total Alkaloid,CCTA)对正常小鼠体液免疫的影响。方法给正常小鼠腹腔注射高(12.96mg/kg)、中(6.48mg/kg)、低(3.24mg/kg)3个剂量的CCTA,每天1次,连续7d,于末次给药后12h,眼球取血并取脾脏,...目的研究鹅绒藤总生物碱(Cynanchum Chinense Total Alkaloid,CCTA)对正常小鼠体液免疫的影响。方法给正常小鼠腹腔注射高(12.96mg/kg)、中(6.48mg/kg)、低(3.24mg/kg)3个剂量的CCTA,每天1次,连续7d,于末次给药后12h,眼球取血并取脾脏,定量溶血分光光度试验进行小鼠脾脏抗体形成细胞检测,对小鼠血清溶血素进行测定。结果CCTA高、中剂量组抗体形成细胞OD值及血清溶血素HC50明显高于免疫小鼠对照组(P<0.05,P<0.01);与CCTA低剂量组比较,CCTA高、中剂量组抗体形成细胞OD值升高(P<0.05),血清溶血素HC50升高(P<0.01)。结论CCTA有提高正常小鼠体液免疫的作用。展开更多
硒化卡拉胶是一个新的含硒有机化合物。本文主要观察它对环磷酰胺引致免疫抑制小鼠的淋巴细胞增殖及抗体形成细胞(PFC)的影响。研究结果表明,环磷酰胺可明显抑制小鼠淋巴细胞增殖及抗体形成细胞数。硒化卡拉胶2或12 mg/kg po qd×20...硒化卡拉胶是一个新的含硒有机化合物。本文主要观察它对环磷酰胺引致免疫抑制小鼠的淋巴细胞增殖及抗体形成细胞(PFC)的影响。研究结果表明,环磷酰胺可明显抑制小鼠淋巴细胞增殖及抗体形成细胞数。硒化卡拉胶2或12 mg/kg po qd×20~40可明显刺激免疫抑制小鼠的淋巴细胞增殖或抗体形成细胞,但大剂量硒化卡拉胶(72 mg/kg)不能显示稳定的刺激作用,在某些条件下反而转向抑制作用。展开更多
文摘每天给小鼠灌服异黄酮植物雌激素芒柄花素(For)或大豆黄酮(Da)20mg/kg,连续7d,明显提高正常小鼠胸腺重量和腹腔巨噬细胞吞噬功能,提高空斑形成细胞的溶血能力和外周血 T 淋巴细胞百分率;体外试验表明:50μg/ml 的 For 或 Da 明显促进植物血凝素(PHA)诱导的甲基-~3H 胸腺嘧啶核苷(methyl-~3H Tdg)参入的淋巴细胞转化。
文摘An immunosuppressive animal model induced by physical stress that forced mice to swim in cold water(14±1℃)and the restorative effect of Tremella polysac charide(TP)on the suppressed immune function by stress were studied in mice.It was found that the spleen plaque forming cell(PFC)response to sheep red blood cells,delayed cuta- neous hypersensitivity(DCH)induced by dinitrochlorobenzene and the lymphocyte prolifer- ation stimulated by concanavalin A(Con A)were significantly decreased in stressed mice. In addition.the maximal decrease of PFC was reached in 9-12 days after stress.A- drenolectomy could not affect the decrease of PFC in stressed mice.TP(200.400mg/kg) ig for 8-14 days significantly restored the PFC.DCH and lymphocyte proliferation to nor- mal level in stressed mice.
文摘目的研究鹅绒藤总生物碱(Cynanchum Chinense Total Alkaloid,CCTA)对正常小鼠体液免疫的影响。方法给正常小鼠腹腔注射高(12.96mg/kg)、中(6.48mg/kg)、低(3.24mg/kg)3个剂量的CCTA,每天1次,连续7d,于末次给药后12h,眼球取血并取脾脏,定量溶血分光光度试验进行小鼠脾脏抗体形成细胞检测,对小鼠血清溶血素进行测定。结果CCTA高、中剂量组抗体形成细胞OD值及血清溶血素HC50明显高于免疫小鼠对照组(P<0.05,P<0.01);与CCTA低剂量组比较,CCTA高、中剂量组抗体形成细胞OD值升高(P<0.05),血清溶血素HC50升高(P<0.01)。结论CCTA有提高正常小鼠体液免疫的作用。
文摘硒化卡拉胶是一个新的含硒有机化合物。本文主要观察它对环磷酰胺引致免疫抑制小鼠的淋巴细胞增殖及抗体形成细胞(PFC)的影响。研究结果表明,环磷酰胺可明显抑制小鼠淋巴细胞增殖及抗体形成细胞数。硒化卡拉胶2或12 mg/kg po qd×20~40可明显刺激免疫抑制小鼠的淋巴细胞增殖或抗体形成细胞,但大剂量硒化卡拉胶(72 mg/kg)不能显示稳定的刺激作用,在某些条件下反而转向抑制作用。